Oracle HTTP Server 12.2.1.4.0/14.1.2.0.0 Core improper authorization

Summaryinfo

A vulnerability marked as critical has been reported in Oracle HTTP Server 12.2.1.4.0/14.1.2.0.0. This affects an unknown function of the component Core. This manipulation causes improper authorization. This vulnerability appears as CVE-2026-34291. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Oracle HTTP Server 12.2.1.4.0/14.1.2.0.0 and classified as critical. Affected by this vulnerability is an unknown code of the component Core. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. While the vulnerability is in Oracle HTTP Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server accessible data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N).

It is possible to read the advisory at oracle.com. This vulnerability is known as CVE-2026-34291 since 03/26/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/24/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 309969 (Oracle HTTP Server (April 2026 CPU)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (309969). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Web Server

Vendor

• Oracle

Name

• HTTP Server

Version

• 12.2.1.4.0
• 14.1.2.0.0

License

• commercial

Website

• Vendor: https://www.oracle.com

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion